发明名称 |
CMOS flash analog-to-digital converter with hysteresis |
摘要 |
A flash analog-to-digital converter has CMOS comparators that compare an analog input signal with internal reference voltages and produce internal output signals. Each comparison is performed according to the threshold voltage of an inverter. A threshold control circuit in each comparator adjusts this threshold voltage according to the internal output signal, thereby providing hysteresis. A logic circuit receives the internal output signals from all the comparators and generates a digital output signal. The hysteresis of the comparators keeps the digital output signal from oscillating between adjacent values when the analog input signal is near one of the internal reference voltages.
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申请公布号 |
US5451952(A) |
申请公布日期 |
1995.09.19 |
申请号 |
US19930107069 |
申请日期 |
1993.08.17 |
申请人 |
OKI ELECTRIC INDUSTRY CO., LTD. |
发明人 |
YAMAZAKI, SEIICHI;OHIE, MITSUYA;SHIN, YASUHIRO |
分类号 |
G01R19/165;H03K5/08;H03M1/36;(IPC1-7):H03M1/34 |
主分类号 |
G01R19/165 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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